Seriously..

This inventor made a 3D printed jet engine.  This is pretty impressive and here is a diagram that he generously shared.  (Note:  Do not try this without the supervision of a professional):

White blades are “Intake”
Blue blades are “Compression”
Pink blade is “Power”
Green blades are “Exhaust”
Intake, Compression, Combustion/Power, Exhaust
Air is blown against the pink/Power blades, this spins up the inside turbine, (in real life it’s usually an electric motor.)
Connected to the Power turbine are the Compression blades, these spin up as well and compress the air into the combustion chamber.

Let’s check out this actual 3D printed jet engine in the video on page 2

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